.login-body {
  margin: 0;
  min-height: 100vh;
  font-family: 'DM Sans', 'Segoe UI', sans-serif;
  background: #0B1220;
  color: #E2E8F0;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
}

.login-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(900px 500px at 15% 10%, rgba(37, 99, 235, 0.28), transparent 55%),
    radial-gradient(700px 420px at 90% 80%, rgba(14, 165, 233, 0.18), transparent 50%),
    linear-gradient(165deg, #0B1220 0%, #111827 55%, #0F172A 100%);
  pointer-events: none;
}

.login-card {
  position: relative;
  width: min(400px, 100%);
  background: rgba(15, 23, 42, 0.88);
  border: 1px solid rgba(148, 163, 184, 0.22);
  border-radius: 16px;
  padding: 1.75rem 1.6rem 1.4rem;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(10px);
}

.login-brand {
  display: flex;
  gap: 0.85rem;
  align-items: center;
  margin-bottom: 1.4rem;
}

.login-mark {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #93C5FD;
  background: rgba(59, 130, 246, 0.16);
  border: 1px solid rgba(96, 165, 250, 0.4);
}

.login-brand h1 {
  margin: 0;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.login-brand p {
  margin: 0.2rem 0 0;
  font-size: 0.78rem;
  color: #94A3B8;
}

.lf {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 0.85rem;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #94A3B8;
}

.lf input {
  font: inherit;
  text-transform: none;
  letter-spacing: normal;
  font-size: 0.95rem;
  color: #F8FAFC;
  background: #0F172A;
  border: 1px solid #334155;
  border-radius: 8px;
  padding: 0.7rem 0.8rem;
}

.lf input:focus {
  outline: none;
  border-color: #60A5FA;
  box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.2);
}

.login-btn {
  width: 100%;
  margin-top: 0.35rem;
  border: none;
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  color: #0B1220;
  background: linear-gradient(180deg, #93C5FD, #60A5FA);
}

.login-btn:hover { filter: brightness(1.05); }
.login-btn:disabled { opacity: 0.65; cursor: wait; }

.login-error {
  margin: 0 0 0.65rem;
  padding: 0.55rem 0.7rem;
  border-radius: 8px;
  background: rgba(248, 113, 113, 0.12);
  border: 1px solid rgba(248, 113, 113, 0.35);
  color: #FCA5A5;
  font-size: 0.85rem;
}

.login-foot {
  margin: 1rem 0 0;
  text-align: center;
  font-size: 0.72rem;
  color: #64748B;
}

.login-btn--ghost {
  display: block;
  box-sizing: border-box;
  text-align: center;
  text-decoration: none;
  color: #93C5FD;
  background: transparent;
  border: 1px solid rgba(96, 165, 250, 0.5);
}
.login-btn--ghost:hover { background: rgba(59, 130, 246, 0.12); }

.login-request {
  margin-top: 1.1rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(148, 163, 184, 0.18);
}
.login-request p { margin: 0 0 0.6rem; font-size: 0.82rem; color: #94A3B8; text-align: center; }
.login-foot a { color: #94A3B8; text-decoration: none; }
.login-foot a:hover { color: #E2E8F0; }

/* Theme toggle + light theme */
.theme-toggle {
  position: absolute; top: 1rem; right: 1rem; z-index: 2;
  width: 40px; height: 40px; display: grid; place-items: center;
  border-radius: 10px; cursor: pointer; color: #E2E8F0;
  background: rgba(15, 23, 42, 0.6); border: 1px solid rgba(148, 163, 184, 0.3);
}
.theme-toggle:hover { border-color: #60A5FA; }
.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .i-sun { display: none; }
:root[data-theme="dark"] .theme-toggle .i-sun { display: block; }
:root[data-theme="dark"] .theme-toggle .i-moon { display: none; }

:root:not([data-theme="dark"]) .login-body { background: #F1F5F9; color: #0F172A; }
:root:not([data-theme="dark"]) .login-bg {
  background:
    radial-gradient(900px 500px at 15% 10%, rgba(37, 99, 235, 0.14), transparent 55%),
    radial-gradient(700px 420px at 90% 80%, rgba(14, 165, 233, 0.12), transparent 50%),
    #F1F5F9;
}
:root:not([data-theme="dark"]) .login-card { background: #FFFFFF; border-color: #E2E8F0; box-shadow: 0 24px 60px rgba(15, 23, 42, 0.12); }
:root:not([data-theme="dark"]) .login-mark { color: #1D4ED8; background: #DBEAFE; border-color: #BFDBFE; }
:root:not([data-theme="dark"]) .login-brand p,
:root:not([data-theme="dark"]) .lf,
:root:not([data-theme="dark"]) .login-request p,
:root:not([data-theme="dark"]) .login-foot,
:root:not([data-theme="dark"]) .login-foot a { color: #64748B; }
:root:not([data-theme="dark"]) .lf input { color: #0F172A; background: #FFFFFF; border-color: #CBD5E1; }
:root:not([data-theme="dark"]) .lf input:focus { border-color: #2563EB; box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.18); }
:root:not([data-theme="dark"]) .login-btn { color: #FFFFFF; background: #2563EB; }
:root:not([data-theme="dark"]) .login-btn--ghost { color: #1D4ED8; background: transparent; border-color: #93C5FD; }
:root:not([data-theme="dark"]) .login-btn--ghost:hover { background: #EFF6FF; }
:root:not([data-theme="dark"]) .login-error { background: #FEF2F2; border-color: #FECACA; color: #B91C1C; }
:root:not([data-theme="dark"]) .login-request { border-top-color: #E2E8F0; }
:root:not([data-theme="dark"]) .theme-toggle { color: #0F172A; background: #FFFFFF; border-color: #CBD5E1; }